Question

Which of the following combination is correct?

Answer 1

Answer: option 4

Explanation:

Answer 2

Column - I Column II

(i) Lucas reagent (a) C6H5, SO2Cl/aq NaOH

(ii) Dumas reagent (b) conc. H2SO4/∆

(iii) Kjeldahl's method (c) CuO/∆

(iv) Heisenberg's reagent (d) Anhy. Zncl2/Conc. HCl

solution : Lucas test is used to simplify alcohol of low molecular weight. Lucas reagent is the solution of anhydrous Zinc chloride in concentrated hydrochloric acid.

so, (i) -> (d)

Dumas test is a method used for quantitative determination of nitrogen in a chemical substances. Dumas reagent is CuO/∆

so, (ii) -> (c)

Kjeldahl's method is a method used for quantitative determination of nitrogen contained in organic compound. Kjeldahl's Reagent is conc. H2SO4/∆

(iii) -> (b)

Heisenberg's reagent is used for the detection and distinction of primary, secondary, and tertiary amines in a given sample. C6H5, SO2Cl/aq NaOH is reagent of it.

(iv) -> (a)